NX has created the bottle valve against which all others will be judged. The “Direct Flow 500”, equipped with .500 orifice and a direct flow, straight through design, is capable of flowing over 2,000 nitrous horsepower. Furnished with a .625 stainless steel siphon tube and a 4AN bottle refill fitting.

Above BAR Inc. is dedicated to providing performance parts to automotive enthusiasts; offering unmatched support, competitive pricing and years of racing experience. We are dedicated to allowing you to quickly and easily push your vehicle safely to its limits.